论投资项目经济评价的累计现值效用和值评价法

本文针对净现等指标的局限性，提出了累计现值效用和值指标。     

棉纺工艺计算机辅助设计DSRI系统

本文介绍了一种棉纺工艺计算机辅助设计 DSRI 系统。用户通过交互方式输入工艺参数后,系统即能在短时间内自动生成合理的棉纺工艺表,并按规定格式打印输出。文中详细论述了该系统的构成和工作原理。     

浓淡型煤粉燃烧器的工业试验分析

本文介绍了浓淡型煤粉燃烧器冷模试验结果在６７０ｔ／ｈ锅炉上的应用情况，对工业试验结果进行了分析。运行实践表明：浓淡型煤粉燃烧器的应用是成功的。它的应用会使火电机组的调峰能力和煤种适应性大大提高。     

600MW锅炉偏转二次风系统炉内流动和NOx排放特性

某６００ＭＷ四角切圆燃烧锅炉,采用偏转二次风系统,炉膛下部二次风大角度正切,上部二次风和ＯＦＡ风反切削旋,因而在炉膛截面水平方向和炉膛高度方式形成分级燃烧,实际运行结果表明,该燃烧器布置方式能抑制炉内结渣,减轻炉膛出口扭转残余并能降低ＮＯｘ排放量。本文通过对该６００ＭＷ锅炉进行冷热态多工况试验,摸索偏转二次风系统的炉风空气动力特性和热态运行特性,采用数值计算对炉炉内流动,传热、燃烧和氮氧化物生成过     

改动分隔屏对喷燃锅炉屏式过热器后速度偏差沿高度方向分布特性的影响

试验研究了在改动前分隔屏的工况下 ,四角喷燃锅炉屏式过热器后 ,左右速度偏差沿水平烟道高度方向的分布特性 ,改动分隔屏的各工况分别为 :向左侧偏转 30°、45°、6 0°;全部偏置在右侧以及各个前屏向左侧偏转不同角度的组合式偏屏。研究表明 ,屏式过热器后左右速度的偏差主要集中在水平烟道的下半部区域。在改动屏的各工况中 ,均能使这一区域的速度偏差系数有不同程度的下降 ,与标准运行工况相比 ,下降幅度为 2 0 %～ 5 0 %。     

Scenarios of optimal control of transregional migration processes under risk

Scenarios of migration are considered as applied to the problem of optimal control of transregional migration with zero risk of overpopulation or insufficient population and migration with obtaining the minimum of the objective functional and minimizing risk. Numerical algorithms for the scenarios considered are developed. The algorithms are implemented in an applied geoinformation decision-support system for control of transregional migration of population. __________ Translated from Kibernetika i Sistemnyi Analiz, No. 1, pp. 16–33, January–February 2007.     

Optimal consumption and portfolio choice with ambiguity and anticipation

This paper, adopting the recursive multiple-priors utility, studies the optimal consumption and portfolio choice in a Merton-style model with anticipation when there is a difference between ambiguity and risk. The fundamental issue is what the effects of ambiguity and anticipation on the investor’s behavior are. In the case of a logarithmic felicity function, the paper also shows that no hedging demand arises that is affected by both ambiguity and anticipation. Finally, the optimal portfolio is derived in terms of Malliavin derivatives and stochastic integrals.     

Clinical assessment applications of ambulatory biosensors.

Ambulatory biosensor assessment includes a diverse set of rapidly developing and increasingly technologically sophisticated strategies to acquire minimally disruptive measures of physiological and motor variables of persons in their natural environments. Numerous studies have measured cardiovascular variables, physical activity, and biochemicals such as cortisol in psychopathology and treatment research. The physiological concomitants of many behavior and medical disorders and the benefits of a multimethod assessment strategy provide strong rationales for clinical applications of ambulatory biosensor measurement. A number of psychometric dimensions of evaluation are important in clinical applications of biosensor measurement, including accuracy and validity, reliability and consistency, clinical utility, incremental validity and utility, sensitivity to change, generalizability, cost benefits, and the conditional nature of dimensions of biomeasure evaluation. The authors review ambulatory biosensor methods and make recommendations for use of the technology. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

部分烟气信息下的锅炉煤质分析模型

锅炉排烟中蕴含大量的燃烧信息，对于烟气的完全分析能够得到大量有价值的燃烧数据，如燃煤组成成分等。但工业生产中，锅炉的排烟分析一般只针对硫化物、氮化物等能形成酸雨的危险气体，而二氧化碳的排放往往得不到有效的监测。同时对于中储式锅炉，入炉煤粉由于来自煤粉仓，其含湿量不易实现在线测量。文中构造一个不依靠烟气二氧化碳含量信号(燃煤水分信号，在中储式锅炉中可以迭代替换掉，而在直吹式锅炉中可以通过磨煤机的状态分析得到)的煤质实时分析模型以实现对锅炉入炉煤粉的收到基成分监测。通过数据分析证明了模型精度符合工业应用的要求。     

Bayesian parametric inference in a nonparametric framework

This paper considers the problem of reporting a “posterior distribution” using a parametric family of distributions while working in a nonparametric framework. This “posterior” is obtained as the solution to a decision problem and can be found via a well-known optimization algorithm.